xnu-3789.1.32.tar.gz

[apple/xnu.git] / bsd / kern / makesyscalls.sh

diff --git a/bsd/kern/makesyscalls.sh b/bsd/kern/makesyscalls.sh
index 7317f55b82d2221aaa81ea899f578a66273404fb..29dd74b740ee48723f2ac22300d4b4d00cfe0e7a 100755 (executable)
--- a/bsd/kern/makesyscalls.sh
+++ b/bsd/kern/makesyscalls.sh
@@ -34,6 +34,9 @@ output_sysprotofile=0
 output_syshdrfile=0
 output_syscalltablefile=0
 output_auditevfile=0
+output_tracecodes=0
+
+use_stdout=0
 
 # output files:
 syscallnamesfile="syscalls.c"
@@ -46,6 +49,7 @@ auditevfile="audit_kevents.c"
 syscallprefix="SYS_"
 switchname="sysent"
 namesname="syscallnames"
+tracecodename="syscall.codes"
 
 # tmp files:
 syslegal="sysent.syslegal.$$"
@@ -56,14 +60,15 @@ sysprotoend="sysprotoend.$$"
 syscallnamestempfile="syscallnamesfile.$$"
 syshdrtempfile="syshdrtempfile.$$"
 audittempfile="audittempfile.$$"
+tracecodetempfile="tracecodetempfile.$$"
 
-trap "rm $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile" 0
+trap "rm $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile $tracecodetempfile" 0
 
-touch $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile
+touch $syslegal $sysent $sysinc $sysarg $sysprotoend $syscallnamestempfile $syshdrtempfile $audittempfile $tracecodetempfile
 
 case $# in
     0)
-       echo "usage: $0 input-file [<names|proto|header|table|audit> [<config-file>]]" 1>&2
+       echo "usage: $0 input-file [<names|proto|header|table|audit|trace> [<config-file>]]" 1>&2
        exit 1
        ;;
 esac
@@ -88,6 +93,10 @@ if [ -n "$1" ]; then
        audit)
            output_auditevfile=1
            ;;
+       trace)
+           output_tracecodes=1
+           use_stdout=1
+           ;;
     esac
     shift;
 else
@@ -96,6 +105,7 @@ else
     output_syshdrfile=1
     output_syscalltablefile=1
     output_auditevfile=1
+    output_tracecodes=1
 fi
 
 if [ -n "$1" -a -f "$1" ]; then
@@ -132,6 +142,7 @@ s/\$//g
                syshdrfile = \"$syshdrfile\"
                syshdrtempfile = \"$syshdrtempfile\"
                audittempfile = \"$audittempfile\"
+               tracecodetempfile = \"$tracecodetempfile\"
                syscallprefix = \"$syscallprefix\"
                switchname = \"$switchname\"
                namesname = \"$namesname\"
@@ -290,6 +301,7 @@ s/\$//g
                argc = 0
                argssize = "0"
                additional_comments = " "
+               obs_comments = "_"
 
                # find start and end of call name and arguments
                if ($current_field != "{")
@@ -347,9 +359,15 @@ s/\$//g
                        current_field = comments_start + 1
                        while (current_field < comments_end) {
                                additional_comments = additional_comments $current_field " "
+                               obs_comments = obs_comments $current_field "_"
                                current_field++
                        }
                }
+               sub(/old/, "obs", obs_comments)
+               obs_comments = substr(obs_comments, 1, length(obs_comments)-1)
+               if (obs_comments == "_") {
+                       obs_comments = ""
+               }
 
                # get function return type
                current_field = args_start + 1
@@ -625,13 +643,6 @@ s/\$//g
                                linesize = length(syscallprefix) + length(tempname) + 12
                                align_comment(linesize, 30, syshdrtempfile)
                                printf("%d\n", syscall_num) > syshdrtempfile
-                               # special case for gettimeofday on ppc - cctools project uses old name
-                               if (tempname == "ppc_gettimeofday") {
-                                       printf("#define\t%s%s", syscallprefix, "gettimeofday") > syshdrtempfile
-                                       linesize = length(syscallprefix) + length(tempname) + 12
-                                       align_comment(linesize, 30, syshdrtempfile)
-                                       printf("%d\n", syscall_num) > syshdrtempfile
-                               }
                        }
                        else if (skip_for_header == 0) {
                                printf("\t\t\t/* %d %s*/\n", syscall_num, additional_comments) > syshdrtempfile
@@ -653,7 +664,21 @@ s/\$//g
                # output to audit_kevents.c
                printf("\t%s,\t\t", auditev) > audittempfile
                printf("/* %d = %s%s*/\n", syscall_num, tempname, additional_comments) > audittempfile 
-               
+
+               tempname = funcname
+               if (skip_for_header == 0) {
+                       if (tempname == "nosys" || tempname == "enosys") {
+                               if (obs_comments == "") {
+                                       printf("0x40c%04x\tBSC_#%d%s\n", (syscall_num*4), syscall_num, obs_comments) > tracecodetempfile 
+                               } else {
+                                       printf("0x40c%04x\tBSC%s\n", (syscall_num*4), obs_comments) > tracecodetempfile 
+                               }
+                       } else {        
+                               sub(/^_+/, "", tempname)
+                               printf("0x40c%04x\tBSC_%s\n", (syscall_num*4), tempname) > tracecodetempfile 
+                       }
+               }
+
                syscall_num++
                next
        }
@@ -671,13 +696,13 @@ s/\$//g
                printf("\n#endif /* !%s */\n", sysproto_h) > sysprotoend
 
                printf("};\n") > sysent
-               printf("int     nsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent
-               printf("/* Verify that NUM_SYSENT reflects the latest syscall count */\n") > sysent
-               printf("_Static_assert(((sizeof(sysent) / sizeof(sysent[0])) == NUM_SYSENT), \"NUM_SYSENT needs to be updated to match syscall count\");\n") > sysent
+               printf("unsigned int    nsysent = sizeof(sysent) / sizeof(sysent[0]);\n") > sysent
 
                printf("};\n") > syscallnamestempfile
                printf("#define\t%sMAXSYSCALL\t%d\n", syscallprefix, syscall_num) \
                    > syshdrtempfile
+               printf("#define\t%sinvalid\t%d\n", syscallprefix, 63) \
+                   > syshdrtempfile
                printf("\n#endif /* __APPLE_API_PRIVATE */\n") > syshdrtempfile
                printf("#endif /* !%s */\n", syscall_h) > syshdrtempfile
                printf("};\n\n") > audittempfile
@@ -707,3 +732,11 @@ fi
 if [ $output_auditevfile -eq 1 ]; then
     cat $syslegal $audittempfile > $auditevfile
 fi
+
+if [ $output_tracecodes -eq 1 ]; then
+       if [ $use_stdout -eq 1 ]; then
+               cat $tracecodetempfile
+       else
+               cat $tracecodetempfile > $tracecodename
+       fi
+fi